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Extension telephone system, main unit, radiotelephone terminal, computer-readable program, and communication method of extension telephone system
Extension telephone system, main unit, radiotelephone terminal, computer-readable program, and communication method of extension telephone system
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机译:扩展电话系统,主机,无线电话终端,计算机可读程序和扩展电话系统的通信方法
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摘要
PROBLEM TO BE SOLVED: To receive an extension telephone service provided by a main device by a wireless telephone terminal regardless of whether the main device and the wireless telephone terminal are in the same network.;SOLUTION: A wireless telephone terminal 2 sends, to a push notification server 3, a push notification request with a notification destination as a main device 1 and a notification content as a call control message to send a call control message to the main device 1 and receives, from the push notification server 3, a push notification with a notification destination as the main device 1 and a notification content as a call control message to receive the call control message from the main device 1. The main device 1 receives, from the push notification server 3, a push notification with a notification source as the wireless telephone terminal 2 and a notification content a call control message to receive the call control message from the wireless telephone terminal 2, and sends, to the push notification server 3, a push notification request with a notification destination as the wireless telephone terminal 2 and a notification content as a call control message to send the call control message to the wireless telephone terminal 2.;SELECTED DRAWING: Figure 1;COPYRIGHT: (C)2019,JPO&INPIT
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